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We present a framework for analysing panchromatic and spatially resolved galaxy observations, dubbed SE3D. SE3D simultaneously and self-consistently models a galaxy's spectral energy distribution and its spectral distributions of global…

星系天体物理 · 物理学 2026-05-19 Steven Ramnichal , Junkai Zhang , Stijn Wuyts , Cheng Li

Resonance spectral lines such as H I Ly {\alpha}, Mg II h&k, and Ca II H&K that form in the solar chromosphere are influenced by the effects of 3D radiative transfer as well as partial redistribution (PRD). So far no one has modeled these…

太阳与恒星天体物理 · 物理学 2016-12-28 Andrii V. Sukhorukov , Jorrit Leenaarts

Learning 3D representations that generalize well to arbitrarily oriented inputs is a challenge of practical importance in applications varying from computer vision to physics and chemistry. We propose a novel multi-resolution convolutional…

机器学习 · 计算机科学 2021-03-22 James Fox , Bo Zhao , Sivasankaran Rajamanickam , Rampi Ramprasad , Le Song

Though a number of point cloud learning methods have been proposed to handle unordered points, most of them are supervised and require labels for training. By contrast, unsupervised learning of point cloud data has received much less…

计算机视觉与模式识别 · 计算机科学 2023-01-25 Jincen Jiang , Xuequan Lu , Wanli Ouyang , Meili Wang

A promising direction for pre-training 3D point clouds is to leverage the massive amount of data in 2D, whereas the domain gap between 2D and 3D creates a fundamental challenge. This paper proposes a novel approach to point-cloud…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Siming Yan , Chen Song , Youkang Kong , Qixing Huang

In recent years, point cloud normal estimation, as a classical and foundational algorithm, has garnered extensive attention in the field of 3D geometric processing. Despite the remarkable performance achieved by current Neural Network-based…

计算机视觉与模式识别 · 计算机科学 2024-06-28 Jun Zhou , Yaoshun Li , Hongchen Tan , Mingjie Wang , Nannan Li , Xiuping Liu

3D urban reconstruction of buildings from remotely sensed imagery has drawn significant attention during the past two decades. While aerial imagery and LiDAR provide higher resolution, satellite imagery is cheaper and more efficient to…

计算机视觉与模式识别 · 计算机科学 2020-05-20 Bo Xu , Xu Zhang , Zhixin Li , Matt Leotta , Shih-Fu Chang , Jie Shan

Scene graphs have been proven to be useful for various scene understanding tasks due to their compact and explicit nature. However, existing approaches often neglect the importance of maintaining the symmetry-preserving property when…

计算机视觉与模式识别 · 计算机科学 2024-07-02 Quang P. M. Pham , Khoi T. N. Nguyen , Lan C. Ngo , Truong Do , Truong Son Hy

Most edge-cloud collaboration frameworks rely on the substantial computational and storage capabilities of cloud-based artificial neural networks (ANNs). However, this reliance results in significant communication overhead between edge…

分布式、并行与集群计算 · 计算机科学 2025-05-28 Di Yu , Changze Lv , Xin Du , Linshan Jiang , Wentao Tong , Zhenyu Liao , Xiaoqing Zheng , Shuiguang Deng

The radiative transfer equations are well-known, but radiation parametrizations in atmospheric models are computationally expensive. A promising tool for accelerating parametrizations is the use of machine learning techniques. In this…

Cirrus clouds are key modulators of Earth's climate. Their dependencies on meteorological and aerosol conditions are among the largest uncertainties in global climate models. This work uses three years of satellite and reanalysis data to…

大气与海洋物理 · 物理学 2023-05-29 Kai Jeggle , David Neubauer , Gustau Camps-Valls , Ulrike Lohmann

Aerosol-cloud interactions (ACI) include various effects that result from aerosols entering a cloud, and affecting cloud properties. In general, an increase in aerosol concentration results in smaller droplet sizes which leads to larger,…

数据分析、统计与概率 · 物理学 2023-01-31 Maëlys Solal , Andrew Jesson , Yarin Gal , Alyson Douglas

Simulating abundances of stable water isotopologues, i.e. molecules differing in their isotopic composition, within climate models allows for comparisons with proxy data and, thus, for testing hypotheses about past climate and validating…

大气与海洋物理 · 物理学 2023-11-28 Jonathan Wider , Jakob Kruse , Nils Weitzel , Janica C. Bühler , Ullrich Köthe , Kira Rehfeld

Low-resolution point clouds are challenging for object detection methods due to their sparsity. Densifying the present point cloud by concatenating it with its predecessors is a popular solution to this challenge. Such concatenation is…

计算机视觉与模式识别 · 计算机科学 2023-05-05 Minh-Quan Dao , Vincent Frémont , Elwan Héry

Cloud computing accelerates design space exploration in logic synthesis, and parameter tuning in physical design. However, deploying EDA jobs on the cloud requires EDA teams to deeply understand the characteristics of their jobs in cloud…

分布式、并行与集群计算 · 计算机科学 2021-02-23 Abdelrahman Hosny , Sherief Reda

Aerosol effects on climate, weather, and air quality depend on characteristics of individual particles, which are tremendously diverse and change in time. Particle-resolved models are the only models able to capture this diversity in…

Clouds' efficiency at reflecting solar radiation and trapping the terrestrial one is strongly modulated by their diurnal cycle. Much attention has been paid to mean cloud properties due to their critical role in climate projections;…

大气与海洋物理 · 物理学 2018-03-06 Jun Yin , Amilcare Porporato

We propose a novel approach to self-supervised learning of point cloud representations by differentiable neural rendering. Motivated by the fact that informative point cloud features should be able to encode rich geometry and appearance…

计算机视觉与模式识别 · 计算机科学 2023-10-27 Di Huang , Sida Peng , Tong He , Honghui Yang , Xiaowei Zhou , Wanli Ouyang

Millimetre-wave (mmWave) radars can generate 3D point clouds to represent objects in the scene. However, the accuracy and density of the generated point cloud can be lower than a laser sensor. Although researchers have used mmWave radars…

信号处理 · 电气工程与系统科学 2023-02-01 Han Cui , Jiacheng Wu , Naim Dahnoun

Significant uncertainty in climate prediction and cloud physics is tied to observational gaps relating to shallow scattered clouds. Addressing these challenges requires remote sensing of their three-dimensional (3D) heterogeneous volumetric…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Roi Ronen , Ilan Koren , Aviad Levis , Eshkol Eytan , Vadim Holodovsky , Yoav Y. Schechner